Well done. In that clip, CW reads Middle of Field Closed pre-snap ("MOFC") and looks at the curl at the bottom of the screen post snap. I can't see the route the #2 receiver runs, but it looks like they're trying to high-low the boundary corner. The problem for USC is that ND rotated to Middle of Field Open ("MOFO") post-snap and has a safety to take the #2 receiver going high while the boundary corner takes the curl going low.
What makes this really work though is the D line pressure. Without that, CW would have had time to shift to the secondary route combination on the field side. The combination of coverage rotation (confuses CW which route combination he should start with) and excellent pressure from the D line made this gameplan shine.